Conclusion: The chemotaxis wandering ability of patient with blood stasis symptom is improved, and can be reduced by protocatechualdehyde.

结论：瘀血证患者单核细胞趋化游走能力增强，原儿茶醛能降低瘀血证患者的单核细胞趋化游走能力。

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P<0.01. Protocatechualdehyde can reduce the chemotaxis wandering ability of monocyte of patients with booel stasis symptom(P<0.01)and healthy people(P<0.05).

原儿茶醛能显著降低瘀血证（P<0.01）及健康人（P<0.05）外周血单核细胞趋化游走能力。

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Methods By means of UPLC, apply factorial experiment design to investigate overall the changing rule of the contents of salvianolic acid B, tanshinol, protocatechualdehyde and etc.

方法：使用超高效液相色谱仪（UPLC），采用析因试验设计，考察了丹参饮片在不同加水倍数、煎煮时间、煎煮次数下的煎出液中丹酚酸B、丹参素、原儿茶醛等多种成份的含量变化规律。

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